National Institute of Allergy and Infectious Diseases (NIAID)

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, National Institute of Allergy and Infectious Diseases (NIAID) sits in the top decile of US sponsors by registered trial count (#5 of 15,742 sponsors by registered trial count).

2,006 total trials 155 currently recruiting 1642 completed early-phase tilt top decile by trial count

National Institute of Allergy and Infectious Diseases (NIAID): 2,006 sponsored US clinical trials, 155 recruiting.

National Institute of Allergy and Infectious Diseases (NIAID) sponsors 2,006 registered US clinical trials on ClinicalTrials.gov, 155 of them currently recruiting, and 1,642 completed. 177 of these trials are in Phase 3-4 (later-stage) and 1,291 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is HIV Infections, with 195 trials.

Top-decile sponsor footprint

National Institute of Allergy and Infectious Diseases (NIAID) ranks in the top decile of sponsors by registered trial count (#5 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

C 68/100

1,642 of 1,802 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (91.1%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Open and recent trials

2,006 total, page 37 of 41

COMPLETED Phase 1

Evaluation of the Safety and Tolerance of Immunotherapy With Autologous, Ex-Vivo Expanded, HIV-Specific Cytotoxic T-Cells in HIV-Infected Patients With CD4+ Counts Between 100-400/mm3

NCT00000756

COMPLETED NA

Treatment With Interleukin-2 (IL-2) Plus Combination Anti-HIV-Drug Therapy (HAART) for Patients Formerly in ACTG 328

NCT00000923

COMPLETED Phase 1

A Study to Evaluate the Safety and Effectiveness of HIV-1 LAI gp120 (an HIV Vaccine) Given With or Without HIV-1 MN rgp120 (Another HIV Vaccine) to HIV-Negative Volunteers

NCT00000868

COMPLETED Phase 1

The Safety and Effectiveness of Zidovudine (AZT) in the Treatment of HIV Infection in Patients With AIDS and Advanced ARC

NCT00000999

COMPLETED Phase 2

CMV Retinitis Retreatment Trial

NCT00000766

COMPLETED Phase 1

Immune Responses in HIV-Positive Patients Receiving an Anti-HIV Drug Combination When Given the HIV Vaccines Remune and vCP1452

NCT00006495

COMPLETED Phase 1

A Study on the Management of Combination Anti-HIV Drug Therapy in HIV-Positive Children With Prior Treatment

NCT00000902

COMPLETED Phase 1

A Phase I/II, Open Label Study to Evaluate the Antiviral Potential of Combination Zidovudine and 2' 3'-Dideoxyinosine (Didanosine) in Patients With Asymptomatic HIV Disease

NCT00000656

COMPLETED

A Study to Evaluate the Effects of Anti-HIV Drugs in HIV-Positive Patients Who Also Have Hepatitis C Infection

NCT00001117

COMPLETED Phase 2

A Randomized Phase II Study of Two Doses of Interferon Alfa-2a (IFN Alfa-2a) in Combination With Zidovudine (AZT) and Dideoxycytidine (ddC) Versus AZT and ddC Only in Patients With HIV Infection and Less Than 400 CD4 Cells/mm3

NCT00000754

COMPLETED NA

A Multicenter, Randomized, Placebo-Controlled, Double-Blind Trial to Evaluate the Safety and Immunogenicity of the Therion Recombinant Vaccinia-HIV-1 IIIB ENV/GAG/POL Vaccine (TCB-3B) and MN RGP 120/HIV-1 In Alum.

NCT00000866

COMPLETED NA

A Collaborative Double-Blind Placebo-Controlled Trial of Intravenous Ribavirin As a Treatment for Presumed Hantavirus Pulmonary Syndrome

NCT00001123

COMPLETED Phase 1

A Study of Pyrimethamine in the Treatment of Infection by a Certain Parasite in HIV-Positive Patients

NCT00000973

COMPLETED

A Study to Collect Information About HIV-Positive Pregnant Women and Their Babies

NCT00000910

COMPLETED Phase 2

Using Drug Levels and Drug Resistance Testing to Select Effective Anti-HIV Drug Combinations in Patients With Drug-resistant HIV

NCT00027339

COMPLETED NA

Safety and Tolerance of Zidovudine With Probenecid and the Effect of Probenecid on Zidovudine Pharmacokinetics Over Four Weeks

NCT00000670

COMPLETED Phase 2

A Study of Chlorhexidine in the Prevention of HIV-1 Transmission From Mothers to Their Babies

NCT00006075

COMPLETED Phase 1

A Study of Foscarnet in the Treatment of HIV Infection in Patients Who Have Taken Zidovudine for a Long Time

NCT00001002

COMPLETED Phase 2

A Comparison of Adefovir and Tenofovir for the Treatment of Lamivudine-Resistant Hepatitis B Virus in People With HIV

NCT00033163

COMPLETED Phase 1

A Study of the Safety and Effectiveness of an HIV Vaccine for HIV-Positive Patients Receiving Anti-HIV Drugs for at Least 2 Years

NCT00006509

COMPLETED Phase 2

The Safety and Effectiveness of Interferon Alfa-2B Plus Didanosine in Patients With Kaposi's Sarcoma

NCT00001114

COMPLETED Phase 2

A Double-Blind, Placebo-Controlled Trial of Paromomycin for Treatment of Cryptosporidiosis in Patients With Advanced HIV Disease and CD4 Counts Under 150 Cells/mm3

NCT00000771

COMPLETED Phase 2

A Study of Itraconazole in the Treatment and Prevention of Histoplasmosis, a Fungal Infection, in Patients With AIDS

NCT00000975

COMPLETED

Collection of Blood Samples From SMART Study Participants for Future Genetic Studies

NCT00377169

COMPLETED Phase 1

A Study to Evaluate the Safety and Tolerance of Nelfinavir (NFV) Given With Zidovudine (ZDV) and Lamivudine (3TC) in HIV-Positive Pregnant Women and Their Infants

NCT00000887

COMPLETED Phase 1

A Phase I/II Study of Hyperimmune IVIG in Slowing Progression of Disease in HIV-Infected Children

NCT00000827

COMPLETED Phase 2

A Phase II Double-Blind Study of Two Doses of SC-49483 in Combination With Zidovudine (ZDV) Versus ZDV

NCT00000791

COMPLETED Phase 2

Evaluation of Treatment for Mycobacterium Avium Complex (MAC) Infection in HIV-Infected Patients

NCT00001039

COMPLETED Phase 1

A Phase I/II Dose Escalation Study of Intradermal gp160 to Evaluate Safety, Delayed Type Hypersensitivity (Skin Test) Responses and Immunogenicity in Asymptomatic HIV Seropositive Patients With More Than 400 CD4+ Cells

NCT00000667

COMPLETED Phase 1

A Phase I, Multicenter, Randomized, Double-Blind, Placebo-Controlled HIV-1 Vaccine Trial to Evaluate the Safety and Immunogenicity of rgp120/HIV-1MN (Genentech) in Combination With QS21 Adjuvant and/or Alum in Healthy Adults.

NCT00001044

COMPLETED Phase 1

A Randomized Study of Activity, Safety, and Tolerance of Oral Ro 24-7429 (Tat Antagonist) in Patients With HIV Infection

NCT00000760

COMPLETED Phase 1

A Study to Test the Safety of Three Experimental HIV Vaccines

NCT00000946

COMPLETED Phase 1

Safety of and Immune Response to an Experimental HIV Vaccine (VRC-HIVADV014-00-VP) in HIV Uninfected Adults

NCT00119873

COMPLETED Phase 1

A Phase I/II Study of Recombinant Interleukin-4 in AIDS and Kaposi's Sarcoma

NCT00000769

COMPLETED Phase 1

A Study of Zidovudine During Labor and Delivery in HIV-Infected Pregnant Women

NCT00000862

COMPLETED Phase 2

Safety and Effectiveness of an Adjuvant in Improving Immune Response to Hepatitis B Virus Vaccine in HIV Infected Individuals

NCT00272493

COMPLETED Phase 1

Safety and Immune Response Study of High-Dose Canarypox ALVAC-HIV Vaccine in Healthy, HIV Uninfected Adults

NCT00027261

COMPLETED Phase 1

A Phase I Safety and Immunogenicity Trial of Live Recombinant Canarypox-gp160 MN (ALVAC vCP125, HIV-1 gp160 MN) in HIV-1 Uninfected Adult Volunteers

NCT00000813

COMPLETED Phase 1

Safety of an HIV DNA Vaccine Given to HIV Uninfected Adults

NCT00043511

COMPLETED NA

A Study of AZT Plus Ganciclovir in Patients With AIDS and Cytomegalovirus (CMV) Infection

NCT00000995

COMPLETED NA

A Randomized Prospective Study of Pyrimethamine Therapy for Prevention of Toxoplasmic Encephalitis in HIV-Infected Individuals With Serologic Evidence of Latent Toxoplasma Gondii Infection

NCT00000666

COMPLETED Phase 3

A Double-Blind, Placebo-Controlled Trial To Evaluate Intravenous Gamma Globulin in Children With Symptomatic HIV Infection Receiving Zidovudine

NCT00000720

COMPLETED

Withdrawal of Antifungal Treatment for Histoplasmosis in Patients After Improved Immune Response to Anti-HIV Drugs

NCT00006316

COMPLETED NA

A Pilot Study Evaluating Penicillin G and Ceftriaxone as Therapies for Presumed Neurosyphilis in HIV Seropositive Individuals

NCT00000648

COMPLETED Phase 1

The Effect of Efavirenz and Nelfinavir on the Blood Levels of Certain Lipid-Lowering Drugs

NCT00017758

COMPLETED Phase 1

The Safety and Effectiveness of Adefovir Dipivoxil in HIV-Infected Children

NCT00000843

COMPLETED Phase 1

A Phase I, Dose-Escalating Safety and Tolerance Study of sCD4-PE40 in HIV-Infected Persons

NCT00000743

COMPLETED Phase 1

A Phase I Study of Safety and Pharmacokinetics of Nevirapine in HIV-1 Infected Pregnant Women and Neonates Born to HIV-1 Infected Mothers

NCT00000808

COMPLETED

A Study of Male Rectal Samples in Preparation for Future Rectal Microbicide Trials

NCT00075062

COMPLETED NA

A Study to Evaluate the Effects of Different Methods of Birth Control on the Drug Actions of Zidovudine (an Anti-HIV Drug) in HIV-Positive Women and to Compare Zidovudine Metabolism in Men and Women

NCT00000897

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Phase Distribution

PhaseTrial count
Phase 1 858
Phase 2 433
Phase 3 123
Phase 4 54

What is open in the National Institute of Allergy and Infectious Diseases (NIAID) pipeline

155 recruiting of 2,006 indexed (8% open); 1,642 completed (82%).

Phase mix: 177 late (III/IV) vs 1,291 early (I/II) (early-phase heavy).

Top condition: HIV Infections (195 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

National Institute of Allergy and Infectious Diseases (NIAID): open-pipeline peers nationwide

Peers matched on 2,006 registered trials and 8% open enrollment, not the therapeutic-area sidebar.

National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 05001,0001,5002,0002,500 5%10%15%20% Total trials Recruiting share National Institute of Allergy and Infectious Diseases (NIAID)Massachusetts General HospitalMemorial Sloan Kettering Cancer CenterPfizerStanford UniversityAlumisAndrei IagaruBioXcel TherapeuticsCorporal Michael J. Crescenz VA Medical Center
National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 2,006 trials (± recruiting share)

Sponsors near 8% open enrollment (± trial volume)

What to do with this National Institute of Allergy and Infectious Diseases (NIAID) page

2,006 registered trials is a research-attention snapshot, not an endorsement of National Institute of Allergy and Infectious Diseases (NIAID) or any single study.

  • 155 of National Institute of Allergy and Infectious Diseases (NIAID)'s trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • HIV Infections is the condition National Institute of Allergy and Infectious Diseases (NIAID) studies most, compare against other sponsors active in the same condition before evaluating a specific study. See HIV Infections trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. National Institute of Allergy and Infectious Diseases (NIAID) pipeline card: 2,006 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.